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Exhaust Valve Cummins 3969637 | 4089762, 4981795, 5259419, 3900250, 13163EA
Ensure optimal engine compression and exhaust flow with this high-durability exhaust valve designed for Cummins QSB, ISB, ISC, and ISL engines. Engineered to withstand extreme combustion temperatures and pressures for long-lasting performance.
Description
High-Performance Exhaust Valve for Cummins Engines
Maintain peak engine efficiency and prevent power loss with this premium exhaust valve, part number 3969637. Specifically engineered for heavy-duty Cummins diesel engines, this valve plays a critical role in sealing the combustion chamber and regulating the release of exhaust gases. This part is also available under the numbers: 4089762, 4981795, 5259419.
Engineered for Extreme Durability
Operating in the harsh environment of a diesel engine’s exhaust port requires materials that can resist thermal fatigue, oxidation, and mechanical wear. This exhaust valve is manufactured to precise dimensional tolerances, ensuring a perfect seat seal that prevents compression leaks and maintains optimal engine performance over millions of cycles.
Product Specifications
- Head Diameter: 38.2 mm
- Stem Diameter: 8.0 mm
- Total Length: 137.8 mm
- Face Angle: 45°
Compatible Engine Models
This exhaust valve is designed to fit a wide range of Cummins medium and heavy-duty diesel engines, including:
- Cummins QSB Series (including QSB 4.5, QSB 5.9, QSB 6.7)
- Cummins ISB Series (including ISB 5.9, ISB 6.7)
- Cummins ISC Series (including ISC 8.3)
- Cummins ISL Series (including ISL 8.9, ISL9)
- Cummins QSC Series (including QSC 8.3)
- Cummins QSL Series (including QSL 8.9)
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 3969637
- 4089762
- 13163EA
- 3900250
- 4981795
- 5259419
